οὓς ἡγεμόνας πόλεως ἐπαιδεύσασθε → whom you educated as city leaders
P. and V. πρόγονος, ὁ.
one's forefathers: P. and V. οἱ πάλαι, οἱ πρόσθεν, P. οἱ ἄνωθεν. οἱ προπάτορες, V. οἱ πάρος.